I got this tuner with my Magnuson and I am having a custom tune done and I did not use the tuner. The tuner is still in the unopened original bubble pack. It has not been used even once! It is the SCT 3416M V.115. I am asking $150 shipped. Please send an email if you're interested to gene@gmpartshouse.com as I don't get on the forum every day and you'll get a faster response this way.